hi,
thank you for your query.
stomach cramps can be due to lot of reasons-
-Gastroenteritis
-constipation
-food poisoning
-
kidney stone
-appendicitis
-
Urinary tract infection
i would advises you to take lots of fluids and have a regular food and sleep schedule,it would help with most of the symptoms.but they still persist i would advise you to consult a GP for medication.
thank you,
wishing you good health